russian sturgeon acipenser gueldenstaedtii diamond sturgeon or danube sturgeon, is a species of fish in the family acipenseridae

acipenser acipenseridae anchovies animal april aquaculture aquatic barbel becomes catch crustaceans danube diamond family feeds fish fisheries fishes fishing freshwater gobies gregarious gueldenstaedtii june may molluscs moves nostril pond river russian sea small snout solitary spawn species sprats sturgeon such tentecles when